Calendar events download to the Hero automatically from G Calendar
But to upload events from Hero to G calendar you need to do this
1. Tap the day you want to set up an event on
2. Tap "add event"
3. Select your google account in "Calendar" drop menu (at top)
4. Type in the info you wish (event, time,etc.)
5. Tap "Add"
Its as simple as that, and as long as you are online, it will upload